Blowing up a balloon means filling the balloon with N2O for people to inhale.
N2O Nitrous oxide, nitrous oxide, commonly known as laughing gas (called nitrogen by car fans), is named after inhalation of abnormal facial muscles, causing the inhaler to make a laughing expression. The gas has a mild narcotic effect, giving the person who inhales it a euphoric feeling, and can become addictive if inhaled in excess.
Nitrous oxide was discovered by Joseph Priestley in 1772, Humphrey Davy himself and his friends, including poets Coleridge and Robert Southey, in 18 The gas was tested in the 1990s. They found that nitrous oxide can make patients lose their sense of pain, and they can still remain conscious without becoming delirious after inhaling it.
It was not long before laughing gas was used as an anesthetic, especially among dentists. Because dentists usually do not have a full-time anesthetist, and the patient is often required to remain awake during diagnosis and treatment and be able to respond to commands with the mouth, the gas here brings great convenience to the dentist.
Extended information:
Nitrous oxide has been used in medicine as an inhalation anesthetic for a long time, but it is rarely used now. Inhalation of a mixture of nitrous oxide and air can cause suffocation when the oxygen concentration is very low; inhalation of a mixture of 80% nitrous oxide and oxygen can cause deep anesthesia and generally has no sequelae after awakening.
Nitrous oxide, commonly known as "laughing gas", is an anesthetic gas that was once widely used in medical surgeries. However, "laughing gas" will cause hypoxia in the human body after entering the blood. Long-term use may cause high blood pressure, syncope, and even heart attack. In addition, long-term exposure to such gases can also cause anemia and damage to the central nervous system.